Shingle



May 22, 1928.

1,670,469 J. A. MCCARTHY SHINGLE INVENTOR.

A TTORNEY.

Patented May 22, 1928.

UNITED STATES PATENT OFFICE.

SHINGLE.

Application filed November 21, 1927.

This invention relates to shingles of the lock type. An object of the resent invention is the provision of a shingle or a shingle strip having locking means integrally formed in the shingle and which cooperate with the coniplementaiy portions of overlapping shingles for rigidly securing the projet'ling free ends of the shingle against curling or being raised by wind pressure.

A further object of the invention is the provisionof a shingle having integrally formed locking means, with the shingles being cut from a sheet or roll of roofing material in such a manner that waste is sub stantially eliminated.

This invention will be best understood from a consideration of the following detailed description, in view of the accompanying drawings forming a part of the specifications, nevertheless itis to be understood that the invention is not confined to the disclosure, being susceptible of such changes and modificatiol'is which shall define no material departure from the salient features of the invention. as expressed in the appended claim.

In the drawings:

Figure 1 is a view in perspective showing a strip shingle with the tabs 2 of a superimposed shingle inserted under the angular receptacle 4.

Figure 2 is a perspective of a section of roof equipped with shingle strips embodying my invention showing how the tabs 2 may REISSUED Serial No. 234,705.

be cut off on the dotted line 7 at the lower edge of the starting point.

Figure 3 is an elevation taken along the line 7---7 Figure 2 with the tabs cut off, showing the end of a tab 5 positioned under the angular receptacle -1-. 6 represents thebody 40 portion. of a submerged shingle.

Referring more particularly to the draw ing Figure 1, the right and left angular slots 4 form angular receptacles that overlap the lower side edges 3 of the tabs 2 anchoring the corners of tabs 2 to the body portion of a shingle is in a lower course when the shingles are assembled in courses.

What I claim is:

A strip shingle having a body portion and a plurality of equally spaced tabs projecting from the weather side. edge of the body. the body portion having right and left angular slots forming angular receptacles between the tabs of a strip and the tabs of adjacent strips; the first leg of said angular slot being positioned at a right angle to the weatherside edge of the body; and the second leg of which extends at an angle to the first leg from its inner end in a straight line direction toward the center between the tabs of a superimposed course of tabs and terminating at a point in a plane of which the side edge of a superimposed tab passes through, when the strip shingles are assembled in courses.

JOHN AUGUSTUS MoCARTHY. 

